Which of the following are the 2 major phospholipids on the outer leaflet of erythrocytes?
A)phosphatidylcholine and phosphatidylethanolamine B)phosphatidylcholine and sphingomyelin C)phosphatidylethanolamine and sphingomyelin D)phosphatidylserine and sphingomyelin
Which of the following mechanisms associates the Ras proteins to the membrane?
A)thioester-linked fatty acyl anchor B)thioether-linked prenyl anchor C)carboxy-terminal ester-linked prenyl anchor D)insertion of a portion of an amphipathic helix into the membrane